@ThunderFT:I've been thinking about this problem. What about solving it by using a I2C-EEprom to store the matrix? Or use a Sdcard-shield on arduino? I think the only way of getting the necessary data for the xbm-files is to use an expansion. Arduino's mem is just too small.

I finally got the LLC from Sparkfun. Now I can try to talk to the display at last.

Currently I'm stuck with the I2C-Temperature sensor on the EA-Board. The sensor is a LM75B temp sensor and is using 3,3V on the I2C lines (so we need the Sparkfun LLC to talk to it from Arduino's 5V-I2C). The slave address of the LM75B is 1|0|0|1|A2|A1|A0 (where A2, A1, A0 can be set by the user). On my board, A2, A1, A0 are 0,0,1 - so the address is 1|0|0|1|0|0|1 (equals 73 DEC or 0x49 HEX).

But I cannot talk to the sensor. I tried with some easy code to get the values, but I don't receive anything. Anyone has more luck??

I've been eagerly waiting for a real e-Ink display, so am eager to find out more on this. From what I can gather, an SD card reader is pretty much needed for a lot of Arduino projects, and should have been included onboard in the first place. Between suxxer and ThunderFT, you guys seem to have a pretty good grasp of what this display does. It might not be ready for 'production', but how much of that original library is useable? Any chance of a writeup on just how to wire it up and talk to it, even with text only ?

But afterwards I used the code from repaper and it doesn't need any temperature.

For my matrix problem, I already got a NFC shield, because I'm sending data with an Android Application by the NFC transmission to Arduino, and I'm trying to display those information. And if I get a new shield, I will have problems with my chip selects.Do you think there are no other possibilities?Is it possible to write on an .xbm file?

I wish I could be of more help. I don't have my SD reader yet to play with, but since they only uses 4 digital pins it may work as well as the NFC reader? With the NVRAM being R/O at runtime, it looks like the SD card would be the only option.

The temperature sensor had me confused; it's not intrinsic to the displays operation I imagine. So, would this work, with an SPI interface and their library? I only want to display text, and it doesn't have to be updated that often.

But afterwards I used the code from repaper and it doesn't need any temperature.

Well the repaper-code is setting the temp fix to 25.

I tried your code, but i don't get any readings from my sensor. A look into the datasheet of the lm75b revealed that temperature is stored in two bytes. Your line of code " Wire.requestFrom(address, 1);" cannot work as it should request two bytes. Maybe you have another temp chip on your board??

I managed to squeeze three custom .xbm pictures onto my Leonardo. I'll have to get me a sd shield (https://www.sparkfun.com/products/544) for more space ;( This means i have to multiplex the ssel pin, cause i'm running out of pins free...

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For my matrix problem, I already got a NFC shield, because I'm sending data with an Android Application by the NFC transmission to Arduino, and I'm trying to display those information. And if I get a new shield, I will have problems with my chip selects.Do you think there are no other possibilities?Is it possible to write on an .xbm file?

I guess this needs a lot of changes in the current code. The image is stored at the beginning of the code with the PROGMEM statement. You could try to overwrite the .xbm file on runtime and see what happens. I'm not familiar with the progmem stuff - so I have to trial and error my way